Hi I live in a Wimpy house bout six years old and the pateo door whistles when the wind blows. I inspected it and found that where the noise comes from cold air is blowing in. I felt down the seals with a credit card on side seems tight and you cant really fit the card in. The windy side though you can easily fit the card in and wiggle it around, Can you buy bigger seals or is that not the thing to do?